Three-high-roll mill.



C. L. TAYLOR.

THREE HIGH ROLL MILL.

APPLICATION FILED AUG. 20, 1907.

1,004,500. Patented Sept. 26, 1911.

4 SHEETS-SHEET 1.

TNESSES YMW ,Al/army COLUMBIA PLANOURAPM co.. WASHINGTON. D. c.

C. L. TAYLOR.

THREE HIGH ROLL MILL.

APPLIOATION rILBD AUG. 2o, 1907.

Patented Sept. 26, 1911.

4 SHEETS-SHEET 2.

ZILVVENTO I Allarney /7 556/09/ A w I, N .r

WTNESSES coLUMmA PLANDCIRAPII C0..WAs|l|NuTON. D. C.

A G. L. TAYLOR. THHHH HIGH HOLL MILL.

APPLICATION FILED AUG. 20, 1907. Patented Sept. 26

VEN TOR COLUMBI PLANOORAPH C0.. WASHINGTON. D.

C. L. TAYLOR.

THREE HIGH ROLL MILL.

APPLIoATIoN FILED AUG. zo. 1907.

Patented Sept. 26, 1911.

4 SHEETS-SHEET 4.

| l A lallll m .om

Allorney ITNEssEs L /6 Zzgl/E TOR XM1-w @da v COLUMBIA PLANMRP":0.,WASIIIND1DNI D. C:

Mad

UNITED STATES PATENT OFFICE.

CLARENCE L. TAYLOR, OF ALLIANCE, OHIO, ASSIGNOR TO THE MORGANENGINEERING COMPANY, OF ALLIANCE, OHIO.

THREE-HIGH-ROLL MILL.

Specification of Letters Patent.

Patented Sept. 26, 1911.

To all whom it may concern.'

Be it known that I, CLARENCE L. TAYLOR, of Alliance, in the county ofStark and State of Ohio, have invented certain new and use- 4fulImprovements in Three High Roll Mills; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

My invention relates to an improvement in three high roll mills, theobject being to provide positively and comparatively simple means forelevating and lowering the middle roll for changing the pass from thebottom to the top and vice versa.

A further object is to provide improved means for yieldingly holding theupper roll in contact with the screws which control the verticaladjustments of the upper roll.

A further object is to provide means for elevating the several rolls,during the operation of changing the rolls or renewing the bearings.

With these objects in view my invention consists in the parts andcombinations of parts as will be hereinafter more fully described andpointed out in the claims.

In the accompanying drawings, Figure 1 is a view in end elevation,partly in section of my improved mill. Fig. 2 is a view in verticalsection through the rolls and their supporting bearings and through thecoun terbalancing cylinder, Fig. 3 is a vertical vlongitudinal sectionalview and Fig. 4 is a view in plan of the projecting end of the upperroller suspending frame.

1 represents the frame of the mill suitably mounted and supported on thebase 2. The

m frame consists of they two side members 1,

i thicknesses, while the intermediate roll 5 is moved or adjusted tochange the pass from top to bottom and from the bottom to the top.

Secured to one side frame 1 of the ma chine, adjacent to the basethereOf, as Shown in Fig. 1, is the hydraulic cylinder 7 which latter isin communication with an accumulator or other source of water supplyunder pressure. The plunger or piston 8 is mounted in the cylinder andis engaged by the lower end of pitman 9, the plunger being recessed asshown to receive the lower end of the pitman. The upper end of thepitman 9 engages the rocking lever 10, which latter as shown in Fig. 1is in the form of a bellcrank lever secured to rocking-shaft 11. Theupper end of pitman 9 rests in a recessed seat 12 integral with saidlever in a plane below the free end of the upper or vertical member 13of lever 10 so that the upward push of the pitman will be in thedirection of movement of thc free end of the member 13.

The free end of member 13 is connected by rod 14 with the free end ofthe depending or vertical member 15 of bell crank lever 16. Each lever10 and 16 shown in Fig. 1, has an inwardly projecting or horizontalmember 17 on the inner ends of which are pivotally mounted the bars 18,the lower ends of which terminate in inwardly facing hooks 19, whichlatter engage trunnions on middle roll rest bars prolonged throughbearing boxes.

From the construction thus far described, it will be seen that if waterunder pressure be admitted to cylinder 7, the plunger 8 will risetherein and elevate the pitman 9, thus turning bell crank 10 on itsfulcrum 11. This turning movement of the bell-crank elevates the hookrod 18, 19 and also the hook rod carried by bell-crank 16, thuselevating the bearing at one end of roll 5.

The cylinder, lever and hook rod mechanism shown in Fig. 1 is duplicatedat the other end of the mill, so that the two ends of the middle rollare supported on four hooks.

With the machine thus constructed, if water be admitted to cylinders 7which are duplicates, one on each side of mill, all the bell-cranklevers will be simultaneously raised, thus elevating roll 5 into contactwith upper roll 4, and opening the pass between rolls 5 and 6. After thesheet has been passed between the lower and intermediate rolls, thelatter is lowered onto the lower roll, by permitting the water to escapefrom cylinders 7, thus opening the upper pass.

The upper roll 4 is mounted at its ends in bearings composed of sections21 and 22, the upper section 21 of which embraces the top and sides ofthe roll neck, while the lower section 22 passes under the latter.

The bearings at opposite ends of the roll 4, are mounted and supportedon rods 25, by Cotter-pins 26 and 27, pins 26 supporting the uppersections of the bearings and pins 27 the lower sections. Rods 25 areconnected at their uppei1 ends to the parallel suspending beams 28 whichlatter extend lengthwiseI the machine, are spaced apart and braced bythe spacing sleeves 29 and bolts 30, and are suspended by links 31 fromthe cross head 32 of plunger 33. rIhis plunger rests and moves incylinder 34 which latter is constantly open to an accumulator andoperates to counterbalance the weight of roll 4 and hold its endbearings in contact with the bearing adjusting screws 35. The cylinder34 is as before stated in constant-ly open communication with the watersupply, the pressure of which is sufficient to hold the roll 4 elevatedand cause it to follow the upward movements of screws 35, the downwardmovements of the screws expelling the water from cylinder 34.

The screws 35, one in each end frame 1, are mounted to rotate in thenuts 35a. rlhe upper end of each screw is embraced by a sleeve 36 whichlatter is mounted to turn on the bearing 37 on the upper end of endframe 1, and which is constructed to rotate the screw and permit thelatter to move vertically therein. Each sleeve 36 is provided with aworm wheel 38 preferably integral therewith which is engaged by a wormshaft for rotating same. The lower ends of the screws are provided withthe shoes 39 which are engaged by the upper sect-ions 21 of the bearingfor the upper roll 4, and which limit the upward movement of the upperroll, the counterbalance cylinder and plunger before referred tooperating to hold the roll up against the shoes on the lower ends of thescrews.

Mounted on the upper end of each screw 35 is a cross head 40, the crossheads of the two screws being connected by the frame 43a. Each crosshead carries shaft 41, on which are mounted or secured twoparallelpulleys 43 over which the cables 44 pass. These cables 44 are eachsecured to the frame of the mill at 45, pass upwardly o-ver the sheaves,and down outside the end frames of the mill.

Then it is necessary to change the rolls, the middle roll 5 is loweredby the mechanism previously described, onto roll 6 and the upper roll 4is forced do-wn onto middle roll 5 the sustaining pressure of the fluidin cylinder 34 being withdrawn either before or after lowering the toproll, by shutting off the supply to the cylinder and then permitting thefluid in the latter to escape.

Cotter pins 27 are then withdrawn from rods 25 thus releasing lowersections 22 of the bearings for the upper roll, and letting the upperroll rest on the bearings carrying the middle roll. By now passing theends of the cables 44, or a lifting strap or yoke connected to the endsof said cab-les, under the roll necks, (the rolls having been previouslydisconnected from the power transmitting spindle, and the screws movedaway from the roll) and continuing the upward movement of the screws theroll 4 will be elevated sufliciently above the middle roll 5 to permit atruck mounted on ways carried by another truck, to be moved under theroll. rlhe roll is then lowered onto the truck and disconnected from thelifting chains after which the truck is moved outwardly onto the largertruck. After the roll has been withdrawn it can be moved to a positionto be picked up by a crane. The middle and bottom rolls can now bedisconnected from their bearings, and from the power transmittingspindle rotating the bottom roll, and be removed in a similar manner.

Bringing a new set of rolls into position and putting the mill inworking order, simply requires the reverse of th-e operation abovedescribed.

It is evident that many slight changes might be resorted to in therelative arrangement of the parts shown and described without departingfrom the spirit and scope of my invention hence I would have itunderstood that I do not wish to confine myself to the exactconstruction shown and described, but,

Having fully described my invention what I claim as new and desire tosecure by Letters-Patent, is

1. In a three high roll mill, the combination with upper and lowerrolls, adjusting screws for the upper roll, means for yieldingly holdingthe upper roll in contact with the adjusting screws, and means wherebythe upper roll may be released from its yielding supporting means, ofpulleys carried by the adjusting screws and cables passing over saidpulleys and adapted to be connected with the ends of the rolls fortemporarily supporting and for lifting and lowering the rollers.

2. In a three high roll, the combination with the rolls, adjustingscrews for the upper roll, means fo-r yieldingly holding said roll incontact with the screws, means whereby said upper roll may be releasedfrom its yielding supporting means, and fluid pressure mechanismconnected by detachable supports to the bearings carrying theintermediate roll, of pulleys carried by the screws and cables passingover said pulleys and adapted to temporarily support and lift and lowerthe rolls when the latter are disconnected from their main supportingdevices.

3. In a rolling mill, the combination with a frame, an upper roll andscrews for controlling the vertical adjustments of said upper roll, of apulley carried by each screw above the frame, and roll lifting cablecarried by each pulley, each cable being secured at one end to the frameof the mill.

4. In a rolling mill, the combination with an upper roll and screws forcontrolling the vertical adjustments of same, of cross head on eachscrew, a pair of pulleys carried by each cross head above the frame, andcables, each secured at one end to the frame of the mill and passingover a pulley, the free ends of the cable adapted to be connected to thenecks of the roll.

5. The combination with upper and lower rolls, screws for adjusting theupper roll,

and hydraulic devices for retaining the end bearings of said upper rollagainst the screws, of an intermediate roll, connected levers arrangedin pairs at each end of the mill, a hooked rod depending from eachlevel', the four hooks supporting the end bearings of the intermediateroll and adapted to swing by gravity away from said bearings Whendisconnected from the latter, and hydraulic devices for actuating theconnected levers.'

In testimony whereof, I have signed this specification in the presenceof two subscribing witnesses.

CLARENCE L. TAYLOR.

Witnesses: A

A. L. ROBERTS, N. C. FETTERS.

Copies of this patent may'be obtained for iive cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

